>Though I fear that will be a notably more expensive purchase.
Not necessarily. There are quite a number of good pens in the sub-$100 range. I personally recommend the Pilot Metropolitan or the Lamy Safari. Both are less (much less) than $100, and can either fit ink cartridges or converters.
I love my LAMY Safari (€12 in most stationers in Germany, it's a cultural phenomenon that's unfortunately slowly dying out, the previous generation learned "Schönschrift" (cursive) in school with theirs and take their pen through life with them). That said, of the two that I own, I can't use either without getting grubby inky nailbeds, I assume the problem lay with me, not the pen.
Also, seconded the rOtring series mechanical pencils are astoundingly good, I'm always close to mine, I never travel without it.
Not necessarily. There are quite a number of good pens in the sub-$100 range. I personally recommend the Pilot Metropolitan or the Lamy Safari. Both are less (much less) than $100, and can either fit ink cartridges or converters.